found nearby. 1:25 a.m., corona, an hour east of l.a., police officers acting on a tip exchanged gunfire with a man they believed to be dorner. the officer was grazed by the bullet, unable to pursue. 1:45, riverside, two more officers on a protective detail ambushed, one killed, the other seriously injured. by sunrise, jittery l.a. police officers opened fire on this blue truck, similar to the suspect's vehicle, but the people inside were just innocent bystanders. >> tragically, we believe that this was a case of mistaken identity by the officers. >> reporter: late this afternoon, police set up a command post in the mountains northeast of l.a. where a truck had been set ablaze. that truck turned out to be dorner's, but the suspect was nowhere to be found. >> the aerial, ground, and search with canines is continuing, and until we find some other information, we'll continue our search.